Oliver Evans: A Man Ahead of His Time

By Sam Moore
Published on May 17, 2011
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A painting of the Orukter Amphibolos, likely a rather fanciful interpretation of the real thing, from a 1947 magazine ad for SKF bearings. The machine is depicted as emerging from the Schuylkill River and features front tiller steering, which doesn’t appear in other drawings of the machine.
A painting of the Orukter Amphibolos, likely a rather fanciful interpretation of the real thing, from a 1947 magazine ad for SKF bearings. The machine is depicted as emerging from the Schuylkill River and features front tiller steering, which doesn’t appear in other drawings of the machine.
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A drawing of Oliver Evans’ Orukter Amphibolos in ground transportation mode.
A drawing of Oliver Evans’ Orukter Amphibolos in ground transportation mode.
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A drawing of what is said to be Oliver Evans’ first steam engine. A small drawing of his Orukter Amphibolos appears in the upper right of the page.
A drawing of what is said to be Oliver Evans’ first steam engine. A small drawing of his Orukter Amphibolos appears in the upper right of the page.

Continuing the Oliver Evans story we began in the May issue, we get to the more controversial part.

Evans recognized the possibilities in steam-powered transportation. In 1786, he applied to the Pennsylvania legislature for exclusive rights to build steam carriages to move over public roads. The lawmakers, as Evans later wrote, “conceived me to be deranged,” and denied his request. A year later Maryland’s legislature had more foresight and granted the rights, “for Mr. Oliver Evans’ new Plan of applying Steam to Propelling land carriages to travel with heavie Burdens Up and Down Hills without the aid of Animal fource with such Velocity as may be Convenient, and be guided by a person sitting therein Secure from the Inclemency of the weather.”

Benjamin H. Latrobe, an influential architect and engineer who knew all the important people in Washington, Philadelphia and Baltimore, published a report that ridiculed Evans as a “visionary, seized with steam mania.” Latrobe used figures to “prove” that all the load-carrying capacity of a steam vehicle would be expended in carrying fuel and water, leaving no room for passengers or freight.

After that, Evans seems to have given up on building a steam carriage. In 1795, he wrote the Young Mill-Wright & Miller’s Guide, which went through many printings. Early in the 1800s, he established the Mars Iron Works in Philadelphia, where he manufactured mill equipment and stationary steam engines.

Built in 1812 – 1815, the Fairmount Water Works in Philadelphia contained two steam engines, one built by Evans and one imported. George Sellers, a Philadelphia engineer who as a boy had known Evans, later wrote: “This engine (Evans’), if my recollection does not deceive me, was oftener seen running than the ‘great English engine,’ as it was then called.” Another user wrote Evans: “I take up my pen to inform you of the wonderful performance of our engine. We are driving at present three saws and millstones with ease; it does not appear to me that we use one-half its power … it is viewed with admiration and astonishment by everyone who sees it perform.”

Orukter Amphibolos

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